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How to drop database manually without using DBCA in Oracle database 11gR2

Posted by Mir Sayeed Hassan on February 10th, 2019

How to drop database manually without using DBCA in Oracle database 11gR2

Database status:

sys@TESTDB> select instance_name,status,version from V$instance;

INSTANCE_NAME    STATUS       VERSION
---------------- ------------ -----------------
testdb           OPEN         11.2.0.4.0

It’s recommended to take the backup of full database for future reference.

Shutdown the database:

sys@TESTDB> shu immediate

Database closed.
Database dismounted.
ORACLE instance shut down.

Startup the database in mount mode with exclusive restrict:

sys@TESTDB> startup mount exclusive restrict;

ORACLE instance started.
Total System Global Area 2455228416 bytes
Fixed Size                  2255712 bytes
Variable Size            1845494944 bytes
Database Buffers          587202560 bytes
Redo Buffers               20275200 bytes
Database mounted.

 

sys@TESTDB> select open_mode,name from v$database;

OPEN_MODE           NAME
-------------------------------------
MOUNTED              TESTDB

Now drop the database, this will drop entire database with datafiles, control files and log files and respective files in it

sys@TESTDB> drop database;
Database dropped.

Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

===========Hence tested & verified in our test env============